diff options
Diffstat (limited to 'arch/arc')
| -rw-r--r-- | arch/arc/kernel/module.c | 35 |
1 files changed, 21 insertions, 14 deletions
diff --git a/arch/arc/kernel/module.c b/arch/arc/kernel/module.c index 24bd2ffb90b7..42e964db2967 100644 --- a/arch/arc/kernel/module.c +++ b/arch/arc/kernel/module.c @@ -51,31 +51,33 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, unsigned int relsec, /* sec index for relo sec */ struct module *module) { - int i, n; + int i, n, relo_type; Elf32_Rela *rel_entry = (void *)sechdrs[relsec].sh_addr; Elf32_Sym *sym_entry, *sym_sec; - Elf32_Addr relocation; - Elf32_Addr location; - Elf32_Addr sec_to_patch; - int relo_type; + Elf32_Addr relocation, location, tgt_addr; unsigned int tgtsec; + /* + * @relsec has relocations e.g. .rela.init.text + * @tgtsec is section to patch e.g. .init.text + */ tgtsec = sechdrs[relsec].sh_info; - sec_to_patch = sechdrs[tgtsec].sh_addr; + tgt_addr = sechdrs[tgtsec].sh_addr; sym_sec = (Elf32_Sym *) sechdrs[symindex].sh_addr; n = sechdrs[relsec].sh_size / sizeof(*rel_entry); - pr_debug("\n========== Module Sym reloc ===========================\n"); - pr_debug("Section to fixup %x\n", sec_to_patch); + pr_debug("\nSection to fixup %s @%x\n", + module->arch.secstr + sechdrs[tgtsec].sh_name, tgt_addr); pr_debug("=========================================================\n"); - pr_debug("rela->r_off | rela->addend | sym->st_value | ADDR | VALUE\n"); + pr_debug("r_off\tr_add\tst_value ADDRESS VALUE\n"); pr_debug("=========================================================\n"); /* Loop thru entries in relocation section */ for (i = 0; i < n; i++) { + const char *s; /* This is where to make the change */ - location = sec_to_patch + rel_entry[i].r_offset; + location = tgt_addr + rel_entry[i].r_offset; /* This is the symbol it is referring to. Note that all undefined symbols have been resolved. */ @@ -83,10 +85,15 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, relocation = sym_entry->st_value + rel_entry[i].r_addend; - pr_debug("\t%x\t\t%x\t\t%x %x %x [%s]\n", - rel_entry[i].r_offset, rel_entry[i].r_addend, - sym_entry->st_value, location, relocation, - strtab + sym_entry->st_name); + if (sym_entry->st_name == 0 && ELF_ST_TYPE (sym_entry->st_info) == STT_SECTION) { + s = module->arch.secstr + sechdrs[sym_entry->st_shndx].sh_name; + } else { + s = strtab + sym_entry->st_name; + } + + pr_debug(" %x\t%x\t%x %x %x [%s]\n", + rel_entry[i].r_offset, rel_entry[i].r_addend, + sym_entry->st_value, location, relocation, s); /* This assumes modules are built with -mlong-calls * so any branches/jumps are absolute 32 bit jmps |